Liquid-dispensing apparatus



y A. P. HWZEMAN LIQU'ID DISPENSING APPARATUS Filed April 23, 1,91%

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ATTUR N E! Patented Dec. 17, 1929 warren sra'rss PATENT OFFICE ARNOLD 1P. HITZEMAN, OF FORT WAYNE, INDIANA, ASSIGNO R TO WAYNE COMPANY. OF FORT WAYNE, INDIANA, A CORPORATION OF INDIANA LIQUID-DISPENSING APPARATUS Application filed April 23,

My invention relates to liquid measuring and dispensingapparatus and particularly to means for keeping the serve valve closed whenever the drain valve is open.

Many types of so called visible dispensing apparatus, such as those used in serving gasolene into automobile tanks, may be so manipulated as to be serving gasoline through the serve valve to customers and at the sanie time draining back gasolene to the storage tank; both flows being from the elevated transparent container and the flow to storage unknown to the purchaser who supposes his automobile tank is receiving all the gasolene that he sees is flowing from the container.

The principal object of my invention is to prevent such surreptitious withdrawal of liquid to the storage tank.

Another object is to provide such safeguarding means as will be readily and naturally used by operators of such dispensing apparatus, and those that will be simple and inexpensive to manufacture.

Some States and municipalities require the elevated reservoir to be kept drained until gasolene is pumped into'it'to supply the next customers wants, and my improved mechanism readily lends itself to such use.

My invention is illustrated in the accompanying drawings, in which Figure 1 is a perspective of a visible gaso lene measuring and dispensing apparatus with top and bottom broken away and onehalf the casing removed to expose the mechanism, the drain-back valve being open and the serve valve closed and dogged so that it can not be opened, and

F 2 is a similar view with the drain-back valve closed and the serve valve open.

Referring now to the drawings, 1 is one.

section of the housing for the pedestal of the apparatus, surn'iounted by a head upon which tightly seats a glass cylindrical elevated container 3 for the gasolene to be dispensed, held securely in position between the bottom head 2 and an upper head (not shown) by tie rods 4.

Gasolene is forced into container 3 by pump 5, through till pipe 6, from a storage tank (not shown). Excess gasolene 1s drained 1928. Serial No. 272,144.

from container 3 back to the storage tank through drain pipe 7, and the container may be completely drained through pipe 8 the flow therethrough being controlled by means of valve 9. )Veight 10 on the end of lever 21 normally keeps drain-back valve 9 closed. Pipe 8 is connected at the bottom into pipe 7.

Gasolene is served from container 3 through serve valve 11, normally kept closed by weight 12 on valve lever 13. Valve lever 13 is secured to and rotates with rod 14 which is a prolongation of the valve stem, as is also segmental guard 15. This guard is notched at 16 to allow the inner end 20 of a lever 17, hereinafter described, to pass the guard when the inner end of said lever is raised, at which time the guard is retracted and the valve 11 closed.

A lever 17 pivoted to a fork 18 which is clamped to pipe 6 or some other fixedpart ot' the apparatus, has its outer end it) shaped to form a .hook on which to hang the hose nozzle (not shown). The inner end 20 of the lever, when in the raised position shown in Fig. 1, as by the weight of the hose and nozzle, dogs the giiiard 15 and prevents the opening of the serve valve 11, because the edge of guard 15 strikes against the inner end 20 of lever 17.

To lever 21 is pivoted the lower end of a rod 22, and the upper end of this rod loosely pierces the lever 17, and is held in correct etiective length by nuts 23 above the lever and nut. 21 below.

It will be seen that when the weight of the hose and nozzle on 19 depresses the outer end of lever 17, the inner end 20 rises if the valve 11 is closed to the position shown in, Fig. 1. and prevents the valve 11 from being opened as long as lever remains in that position. The rising of the inner end 20 ot lever 17 opens drain-thick valve 9. It guard 15 is in the position shown in Fig. 2, as it is when the serve valve 11 is open, then the position or the lever 17 can not be changed so that its end 20 will be raised, and so long as the guard stays in that position the drain valve 9 can not be so opened.

Although a preferred form of theinvention has been shown and described, it will be unthe scope of what is claimed, may make changes, without departing from the spirit of my invention.

I claim as my invention and desire to secure by Letters Patent of the United States 1. In a liquid dispensing apparatus having an elevated container for the liquid to be dis pensed, a conduit for completely draining said container hack to storage, a normally closed valve controlling the flow of liquid through said conduit and a normally closed serve valve through which liquid is drawn; combined lever actuated means for opening said drain valve when said serve valve is closed, for preventing the opening of the drain valve when the serve valve is open and for preventing the opening of the serve valve when the drain valve open.

In combination with a liquid dispensing apparatus having an elevated container for the liquid to be dispensed, a conduit for complctely draining said container back to storage, a normally closed valve controlling the flow of liquid through said conduit, a leverfor opening said valve, a normally closed serve alve through which liquid is drawn and a lever for opening said serve valve; a guard movable with the serve valve lever, a pivoted lover, a pivot by which said pivoted lever is secured to a fixed part of the apparatus, one end of said pivoted lever projecting outwardly and formedto hang a hose nozzle on, the other end of said pivoted lever projecting inwardly and terminating adjacent said guard to dog the same preventing the opening ofthe serve valve when the drain valve is open and preventing opening the drain valve when the serve valve is open, and a connecting link between said pivoted lever and the lever of the valve controlling said drain conduit.

3. In combination with a liquid dispensing apparatus having an elevated container for the liquid to be dispensed, a conduit for completely draining said container back to storage, a normally closed valve controlling the flow of liquid through said conduit, a lever for opening said valve, a norniallyclosed serve valve through whichliquid is drawn and a-lever fixed to the valve stem tor rotating the same to open said serve valve; a guard fixed to said valve stem, a pivoted lever, a pivot by which said pivoted lever is secured to a fixed part of the apparatus, one end of said pivoted lever projecting outwardly and formed to hang a hose nozzle on, the outer end of said pivoted lever projecting inwardly and terminating adjacent said guard to dog the same preventing the opening of the serve valve when the drain valve is open and preventing opening the drain valve when the serve valve is open, and a connecting link between said pivoted lever and the lever of derstood that a mechanic, working within the drain valve causing said levers to rise and tall together.

In testimony whereof I have hereunto set my hand. 

